MC9S12HY64 Datasheet, PDF (390/792 Pages) Freescale Semiconductor, Inc – S12 Microcontrollers

Pulse-Width Modulator (S12PWM8B8CV1)
11.1.3 Block Diagram
Figure 11-1 shows the block diagram for the 8-bit 8-channel PWM block.
Bus Clock
PWM8B8C
PWM Channels
Channel 7
Period and Duty Counter
Clock Select ^{PWM Clock}
Control
Channel 6
Period and Duty Counter
Channel 5
Period and Duty Counter
Channel 4
Period and Duty Counter
Enable
Polarity
Alignment
Channel 3
Period and Duty Counter
Channel 2
Period and Duty Counter
Channel 1
Period and Duty Counter
Channel 0
Period and Duty Counter
PWM7
PWM6
PWM5
PWM4
PWM3
PWM2
PWM1
PWM0
Figure 11-1. PWM Block Diagram
11.2 External Signal Description
The PWM module has a total of 8 external pins.
11.2.1 PWM7 — PWM Channel 7
This pin serves as waveform output of PWM channel 7 and as an input for the emergency shutdown
feature.
11.2.2 PWM6 — PWM Channel 6
This pin serves as waveform output of PWM channel 6.
MC9S12HY/HA-Family Reference Manual, Rev. 1.04
390
Freescale Semiconductor